Friday 12 January 2018

general relativity - Is spacetime all that exists?


Someone claiming to have studied physics is telling me that spacetime is all that exists and that this fact is the basis of modern physics. When I said matter/energy also exists in its various forms, he said that energy is merely spacetime "waving/vibrating/acting", else what did I think was doing the waving: magical fairy dust? and has presented the following Einstein quote to support his claim:


"When forced to summarize the general theory of relativity in one sentence: Time and space and gravitation have no separate existence from matter."



Does Einstein's quote support what he's saying, that space-time is all that exists, and that matter/energy is spacetime waving?




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